Laziness/procrastination has a kind of independent momentum to it. When you're having an off day, even if you consciously commit to getting back on track, the rut tends to find its way back to you within a couple of hours. I list three different courses of action you can take to get out of a laziness death spiral.
Generalists sometimes need to take things "off the table" in their lives, sometimes permanently. A micro-retirement is the letting go of a single activity in your life to make room for other things. I've found that using the mindset of retirement is more acceptable, psychologically, than "forcing myself to quit" or something like that. "Quitting" implies dissatisfaction, which is why I never considered "quitting" parkour. "Retirement" implies completion, which is, at worst, bittersweet.